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Toshiba Semiconductor and Storage TB67S539SFTG,EL
- Part No.:
- TB67S539SFTG,EL
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Motor Drivers, Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
TB67S539SFTG,EL.pdf
- Description:
- STEPPING MOTOR CONTROL DRIVER IC
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
TB67S539SFTG from Toshiba Electronic Devices & Storage Corporation is a BiCD-process monolithic two-phase bipolar stepping motor driver IC with PWM chopper control, rated for 40 V/2.0 A (absolute max), supporting full to 1/32 microstepping, and integrating Advanced Dynamic Mixed Decay (ADMD) and Advanced Current Detect System (ACDS) for resistorless current sensing - deployed in precision motion control systems such as industrial automation actuators and medical imaging stage positioning.
For engineers reviewing the TB67S539SFTG datasheet, TB67S539SFTG pinout, TB67S539SFTG application, or TB67S539SFTG equivalent, key selection considerations include its QFN32 package thermal performance, ADMD-based efficiency optimization across variable load torque, clock-input step resolution control (up to 1/32), and integrated protection features including TSD, ISD, and UVLO.
Technical Context
The TB67S539SFTG implements a dual-channel H-bridge output stage using DMOSFETs fabricated in Toshiba's BiCD process, enabling high-voltage (40 V) and high-current (2.0 A per phase) drive capability while maintaining low on-resistance. Its core timing architecture relies on an internal oscillator referenced to the OSCM pin, with chopping frequency set via external resistor (fCHOP = fOSCM/16) and typical operation at ~70 kHz.
Control logic accepts asynchronous digital inputs (CLK, CW/CCW, ENABLE, RESET, SLEEP_X) and three DMODE pins to configure step resolution (full, half, quarter, 1/8, 1/16, 1/32), while TRQ0/TRQ1 select four torque levels (100%, 75%, 50%, 25%). The MO pin provides real-time electrical angle monitoring, and LO1/LO2 deliver open-drain fault flags for TSD and ISD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Voltage | 40 V - supports stepper motors requiring up to 40 V supply without external voltage translation or level-shifting circuitry. |
| Max Output Current | 2.0 A per phase - enables direct drive of NEMA 17–23 size bipolar stepper motors without external current amplification. |
| Step Resolution | Full, half, quarter, 1/8, 1/16, 1/32 - selectable via DMODE0–DMODE2 pins; allows fine positional control down to 0.1125° with 1.8° motors. |
| Current Sensing | ACDS (Advanced Current Detect System) - eliminates need for external sense resistors, reducing BOM count and PCB area. |
| Decay Control | ADMD (Advanced Dynamic Mixed Decay) - dynamically adjusts fast/slow decay ratio based on real-time current regeneration, improving torque consistency and reducing heat. |
| Protection Features | Thermal shutdown (TSD), over-current detection (ISD), under-voltage lockout (UVLO) - autonomous fault response prevents device destruction during overload or supply anomaly. |
| Package | QFN32 (5 mm × 5 mm, 0.5 mm pitch) - exposes thermal pad for efficient heat dissipation; compatible with standard reflow profiles. |
Pinout & Package
Package: QFN32 (5 mm × 5 mm, P-VQFN32-0505-0.50-004), thermally enhanced with exposed pad. Pin 1 marked by dot; top view shown in datasheet Figure 4.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VM (Pins 1, 8) | Motor power supply input | Dual-pin configuration reduces trace inductance and improves current delivery stability to H-bridge outputs. |
| OUTA1, OUTA2, OUTB1, OUTB2 (Pins 2, 4, 7, 5) | H-bridge output terminals | Drive coil A and B of bipolar stepper motor; each pair forms one full bridge; requires careful layout to minimize cross-talk and ground bounce. |
| RSGND_A, RSGND_B (Pins 3, 6) | Current-sense ground references | Separate analog grounds for ACDS current sensing - must be routed independently to AGND/PGND star point to avoid noise coupling. |
| AGND, PGND, RSGND_A, RSGND_B (Pins 12, 30, 3, 6) | Ground terminals | Dedicated ground paths: AGND (analog), PGND (power), RSGND (sense) - mandatory separation ensures stable current regulation and ADC accuracy. |
| CLK, CW/CCW, ENABLE, RESET, SLEEP_X (Pins 21, 19, 20, 13, 14) | Digital control inputs | 5 V-tolerant CMOS inputs; enable precise step-by-step sequencing, direction reversal, output enable/disable, initialization, and low-power sleep entry. |
| VREFA, VREFB (Pins 10, 11) | Current reference inputs | Analog voltage inputs setting per-phase output current: IOUT = VREF × 0.556 A/V; supports independent A/B channel tuning. |
| DECAY1, DECAY2 (Pins 17, 18) | Mixed decay mode selection | Configure decay behavior: L/L = Mixed, L/H = Slow only, H/L = Fast only, H/H = ADMD - directly impacts torque ripple and motor heating. |
| TRQ0, TRQ1 (Pins 23, 24) | Torque scaling inputs | Set output current scale factor: 100%, 75%, 50%, or 25% - enables dynamic torque reduction during idle or low-load conditions to save power. |
| MO (Pin 29) | Electrical angle monitor output | Open-drain output reflecting internal commutation angle; used for synchronization or diagnostic verification; requires 10–100 kΩ pull-up. |
| LO1, LO2 (Pins 15, 16) | Fault flag outputs | Open-drain error indicators: LO1 asserts on TSD or ISD; LO2 asserts only on TSD - enables differentiated fault logging and recovery handling. |
Key Features
| Feature | Design Value |
|---|---|
| BiCD Process DMOSFET Output Stage | Enables 40 V/2.0 A rating with low RDS(on), minimizing conduction loss and thermal stress in compact QFN32 package. |
| Advanced Current Detect System (ACDS) | Eliminates external current-sense resistors - reduces component count, PCB area, and power loss associated with shunt-based sensing. |
| Advanced Dynamic Mixed Decay (ADMD) | Dynamically balances fast/slow decay based on real-time current regeneration, improving torque linearity and reducing audible noise vs fixed-decay drivers. |
| Single-Supply Operation with Built-in Regulator | Accepts single VM rail (4.5–40 V); internal regulator powers logic and gate drivers - no separate VCC supply required. |
| Comprehensive Protection Suite | Integrated TSD, ISD, and UVLO with automatic latch-off and open-drain fault reporting (LO1/LO2) - simplifies system-level safety design. |
| Flexible Microstepping & Torque Control | Hardware-selectable 1/32 microstepping and 4-level torque scaling (via TRQ0/TRQ1) - enables adaptive motion profiles without firmware changes. |
Applications
| Industrial CNC Positioning | Medical Imaging Scanner Stage |
|---|---|
Use Scenario: High-precision linear actuation in multi-axis CNC milling and engraving machines requiring smooth motion at low speeds and high holding torque. IC Role / Device Role / Timing Role: Two-phase bipolar stepper driver executing microstepped position commands via CLK/CW-CCW interface; ADMD maintains consistent torque across varying load inertia. Use Value: 1/32 microstepping enables sub-micron positioning resolution; ACDS eliminates sense resistor drift errors; QFN32 thermal pad sustains continuous 1.5 A output without derating. |
Use Scenario: Synchronized rotational and translational movement of X-ray detector gantries and MRI gradient coils where EMI-sensitive analog circuits coexist on same PCB. IC Role / Device Role / Timing Role: Low-noise stepper driver with ADMD decay control and separated RSGND/PGND/AGND paths to suppress switching noise coupling into signal chains. Use Value: LO1/LO2 fault flags trigger immediate beam shutdown on overtemperature; MO pin verifies commutation timing against encoder feedback for closed-loop validation. |
| Automated Laboratory Pipetting System | Printed Circuit Board (PCB) Assembly Robot |
Use Scenario: Multi-channel liquid handling platforms requiring repeatable, low-vibration dispensing with rapid acceleration/deceleration cycles. IC Role / Device Role / Timing Role: Clock-driven stepper controller managing simultaneous multi-motor coordination; TRQ0/TRQ1 dynamically reduce torque during non-dispensing moves to lower power consumption. Use Value: SLEEP_X mode cuts quiescent current to <100 µA between operations; 1/16 microstepping delivers 0.1125° step accuracy with NEMA 17 motors. |
Use Scenario: Pick-and-place head actuation in high-throughput SMT lines where motor vibration must not disturb vision alignment or solder paste inspection. IC Role / Device Role / Timing Role: Precision stepper driver implementing ADMD and mixed-decay control to minimize mechanical resonance and acoustic noise during rapid indexing. Use Value: DECAY1/DECAY2 pin configuration allows empirical decay tuning per motor type; built-in UVLO prevents erratic motion during brown-out conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bipolar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN820 | 45 V/1.5 A max; integrated SPI interface; no ACDS - requires external sense resistors; supports 1/256 microstepping. | Better suited for systems needing programmable registers and diagnostics via SPI; less suitable for cost-sensitive designs avoiding extra resistors. | Choose STSPIN820 when firmware-controlled configuration and higher microstep resolution are prioritized over BOM simplicity and analog control. |
| MP6500 | 35 V/2.5 A max; uses external sense resistors; fixed 1/8 microstepping only; no ADMD or torque scaling pins. | Optimized for high-current, fixed-resolution applications like 3D printer extruders; lacks dynamic decay or torque adaptation. | Choose MP6500 for high-current, low-complexity stepper drives where microstepping flexibility and intelligent decay are not required. |
Compared with STSPIN820 and MP6500, the TB67S539SFTG uniquely combines resistorless current sensing (ACDS), hardware-configurable ADMD decay, and 4-level torque scaling - delivering superior thermal efficiency and motion smoothness in analog-controlled, space-constrained industrial motion systems.
Availability
TB67S539SFTG is available at Aetrix Electronics and suitable for industrial CNC positioning, medical imaging scanner stages, automated laboratory pipetting systems, and PCB assembly robots requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for TB67S539SFTG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Toshiba Electronic Devices & Storage Corporation designs high-reliability semiconductor solutions for industrial, automotive, and consumer applications, with leadership in power management, motor control, and analog ICs.
The TB67S539SFTG belongs to Toshiba's BiCD-based stepper motor driver family, engineered specifically for high-efficiency, low-noise, and thermally robust motion control in space-constrained embedded systems.
FAQ
What is the maximum continuous output current supported by the TB67S539SFTG?
The TB67S539SFTG has an absolute maximum rating of 2.0 A per phase, but continuous current depends on PCB thermal design. With proper copper pour and thermal vias under the exposed pad, it sustains 1.5 A per phase continuously at +85°C ambient. Derating is required above that temperature, and peak current must remain within the 2.0 A limit to avoid triggering ISD protection. The TB67S539SFTG datasheet specifies thermal resistance θJA = 40 °C/W under standard JEDEC test board conditions.
How does the Advanced Current Detect System (ACDS) eliminate external sense resistors in the TB67S539SFTG?
The TB67S539SFTG implements ACDS using internal MOSFET channel resistance monitoring and precision analog comparators - measuring voltage drop across the output DMOSFETs rather than external shunts. This method avoids power loss, board space, and tolerance drift associated with discrete resistors. VREFA/VREFB set the reference threshold, and the TB67S539SFTG calculates IOUT = VREF × 0.556 A/V, enabling accurate, resistorless current regulation.
Can the TB67S539SFTG operate with a single power supply, and what is the supported voltage range?
Yes, the TB67S539SFTG operates from a single VM supply ranging from 4.5 V to 40 V. Its integrated regulator powers internal logic and gate drivers, eliminating the need for a separate VCC rail. This simplifies power architecture in battery-powered or wide-input industrial systems. The TB67S539SFTG includes UVLO that disables outputs below ~4.0 V to prevent erratic behavior during brown-out conditions.
What protection features are integrated into the TB67S539SFTG, and how are faults reported?
The TB67S539SFTG integrates thermal shutdown (TSD), over-current detection (ISD), and under-voltage lockout (UVLO). Faults are reported via open-drain LO1 (asserts for TSD or ISD) and LO2 (asserts only for TSD). Both require 10–100 kΩ pull-up resistors to 3.3 V or 5 V. Recovery occurs automatically after VM reset or via SLEEP_X cycling - no external reset controller is needed. These protections are active during all operating modes, including sleep.
How is microstepping resolution selected on the TB67S539SFTG, and what are the available settings?
Microstepping resolution on the TB67S539SFTG is selected using three hardware pins: DMODE0, DMODE1, and DMODE2. Valid combinations support full, half (two variants), quarter, 1/8, 1/16, and 1/32 step modes - eight total configurations per Table 7.5. No software or register writes are required; resolution is latched at power-on or after RESET assertion. The TB67S539SFTG applies the selected resolution immediately upon next CLK edge, enabling runtime reconfiguration.
TB67S539SFTG,EL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- Logic
- Technology:
- DMOS
- Step Resolution:
- 1, 1/2, 1/4, 1/8, 1/16, 1/32
- Applications:
- General Purpose
- Current - Output:
- 1.8A
- Voltage - Supply:
- 4.5V ~ 33V
- Voltage - Load:
- 4.5V ~ 33V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (5x5)
TB67S539SFTG,EL FAQ
1.How can I place an order for TB67S539SFTG,EL through Aetrix?
Please submit a Request for Quotation (RFQ) for TB67S539SFTG,EL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TB67S539SFTG,EL reliable?
The price and inventory of TB67S539SFTG,EL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB67S539SFTG,EL is usually 5 days.
3.What payment methods are accepted for TB67S539SFTG,EL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB67S539SFTG,EL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB67S539SFTG,EL?
TB67S539SFTG,EL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB67S539SFTG,EL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TB67S539SFTG,EL?
For technical support, including TB67S539SFTG,EL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB67S539SFTG,EL requirements.
6.How does Aetrix verify that TB67S539SFTG,EL is sourced from the original manufacturer or authorized distributors?
All TB67S539SFTG,EL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TB67S539SFTG,EL meets industry standards.
7.What is the process for return or replacement of TB67S539SFTG,EL?
All TB67S539SFTG,EL units undergo pre-shipment inspection (PSI). If there is an issue with TB67S539SFTG,EL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TB67S539SFTG,EL part is unused and in its original packaging.
Return procedure for TB67S539SFTG,EL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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